Don't include :code by default in storage proofs (#5179)

* Don't include `:code` by default in storage proofs (#5060)

* Adds test to verify that the runtime currently is always contained in
the proof

* Start passing the runtime wasm code from the outside

* Fix compilation

* More build fixes

* Make the test work as expected now :)

* Last fixes

* Fixes benchmarks

* Review feedback

* Apply suggestions from code review

Co-Authored-By: Sergei Pepyakin <sergei@parity.io>

* Review feedback

* Fix compilation

Co-authored-by: Sergei Pepyakin <s.pepyakin@gmail.com>

* Fix compilation and change the way `RuntimeCode` works

* Fix tests

* Switch to `Cow`

Co-authored-by: Benjamin Kampmann <ben@gnunicorn.org>
Co-authored-by: Sergei Pepyakin <s.pepyakin@gmail.com>

substrate/client/executor/src/lib.rs

@@ -52,8 +52,12 @@ pub trait RuntimeInfo {
 	/// Native runtime information.
 	fn native_version(&self) -> &NativeVersion;
 
-	/// Extract RuntimeVersion of given :code block
-	fn runtime_version(&self, ext: &mut dyn Externalities) -> error::Result<RuntimeVersion>;
+	/// Extract [`RuntimeVersion`](sp_version::RuntimeVersion) of the given `runtime_code`.
+	fn runtime_version(
+		&self,
+		ext: &mut dyn Externalities,
+		runtime_code: &sp_core::traits::RuntimeCode,
+	) -> error::Result<RuntimeVersion>;
 }
 
 #[cfg(test)]
@@ -77,6 +81,7 @@ mod tests {
 		);
 		let res = executor.call_in_wasm(
 			&WASM_BINARY[..],
+			None,
 			"test_empty_return",
 			&[],
 			&mut ext,